<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/strict.dtd">
<!-- saved from url=(0044)http://www.brainjar.com/dhtml/drag/demo.html -->
<HTML xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><HEAD><META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>BrainJar.com: Generic Drag Demo</TITLE>

<LINK href="./Generic Drag Demo_files/default.css" rel="stylesheet" type="text/css">
<STYLE type="text/css">

.box {
  background-color: #ffff00;
  border: 1px solid #000000;
  color: #000000;
  padding: 0px;
  position: absolute;
}

.bar {
  background-color: #008080;
  color: #ffffff;
  cursor: move;
  font-weight: bold;
  padding: 2px 1em 2px 1em;
}

.content {
  padding: 1em;
}

</STYLE>
<SCRIPT type="text/javascript">//<![CDATA[

//*****************************************************************************
// Do not remove this notice.
//
// Copyright 2001 by Mike Hall.
// See http://www.brainjar.com for terms of use.
//*****************************************************************************

// Determine browser and version.

function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();

// Global object to hold drag information.

var dragObj = new Object();
dragObj.zIndex = 0;

function dragStart(event, id) {

  var el;
  var x, y;

  // If an element id was given, find it. Otherwise use the element being
  // clicked on.

  if (id)
    dragObj.elNode = document.getElementById(id);
  else {
    if (browser.isIE)
      dragObj.elNode = window.event.srcElement;
    if (browser.isNS)
      dragObj.elNode = event.target;

    // If this is a text node, use its parent element.

    if (dragObj.elNode.nodeType == 3)
      dragObj.elNode = dragObj.elNode.parentNode;
  }

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Save starting positions of cursor and element.

  dragObj.cursorStartX = x;
  dragObj.cursorStartY = y;
  dragObj.elStartLeft  = parseInt(dragObj.elNode.style.left, 10);
  dragObj.elStartTop   = parseInt(dragObj.elNode.style.top,  10);

  if (isNaN(dragObj.elStartLeft)) dragObj.elStartLeft = 0;
  if (isNaN(dragObj.elStartTop))  dragObj.elStartTop  = 0;

  // Update element's z-index.

  dragObj.elNode.style.zIndex = ++dragObj.zIndex;

  // Capture mousemove and mouseup events on the page.

  if (browser.isIE) {
    document.attachEvent("onmousemove", dragGo);
    document.attachEvent("onmouseup",   dragStop);
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS) {
    document.addEventListener("mousemove", dragGo,   true);
    document.addEventListener("mouseup",   dragStop, true);
    event.preventDefault();
  }
}

function dragGo(event) {

  var x, y;

  // Get cursor position with respect to the page.

  if (browser.isIE) {
    x = window.event.clientX + document.documentElement.scrollLeft
      + document.body.scrollLeft;
    y = window.event.clientY + document.documentElement.scrollTop
      + document.body.scrollTop;
  }
  if (browser.isNS) {
    x = event.clientX + window.scrollX;
    y = event.clientY + window.scrollY;
  }

  // Move drag element by the same amount the cursor has moved.

  dragObj.elNode.style.left = (dragObj.elStartLeft + x - dragObj.cursorStartX) + "px";
  dragObj.elNode.style.top  = (dragObj.elStartTop  + y - dragObj.cursorStartY) + "px";

  if (browser.isIE) {
    window.event.cancelBubble = true;
    window.event.returnValue = false;
  }
  if (browser.isNS)
    event.preventDefault();
}

function dragStop(event) {

  // Stop capturing mousemove and mouseup events.

  if (browser.isIE) {
    document.detachEvent("onmousemove", dragGo);
    document.detachEvent("onmouseup",   dragStop);
  }
  if (browser.isNS) {
    document.removeEventListener("mousemove", dragGo,   true);
    document.removeEventListener("mouseup",   dragStop, true);
  }
}

//]]></SCRIPT>
</HEAD><BODY>

<!-- Normal page content. -->

<DIV id="demoBox">

<H3>Generic Drag Demo</H3>

<P>This page contains three absolutely positioned elements and one relatively
positioned element, all of which can be dragged around the browser window.</P>

<P>Use your browser's <CODE>View Source</CODE> option to see the full source
code.</P>

</DIV>

<P style="border:1px solid #000000;width:12em;text-align:center;" onmousedown="dragStart(event, &#39;boxC&#39;)">Drag Box C</P>

<DIV id="boxA" class="box content" style="width: 12em; z-index: 1; left: 463px; top: 28px; " onmousedown="dragStart(event)">
This is Box A, drag it.
</DIV>

<DIV id="boxB" class="box" style="z-index: 3; left: 459px; top: 286px; ">
  <DIV class="bar" style="width:12em;" onmousedown="dragStart(event, &#39;boxB&#39;)">Drag Box B</DIV>
  <DIV class="content" style="width:12em;">This is Box B, drag it using the bar above.</DIV>
</DIV>

<DIV id="boxC" class="box content" style="width: 12em; z-index: 5; left: 399px; top: 155px; ">
This is Box C, drag it using the box at left.
</DIV>

<DIV id="boxD" class="box content" style="position: relative; width: 12em; z-index: 7; left: 114px; top: 102px; " onmousedown="dragStart(event)">
This is Box D which is relatively positioned, drag it.
</DIV>



</BODY></HTML>